For the curry sauce, peel and finely dice the onion and garlic. Peel ginger and grate finely. Remove the outer leaves from the lemon grass, cut the stem lengthwise, then cut into three. Wash the lime hot, dry and grate the peel.
Squeeze the lime.
Heat 1 tablespoon of oil in a saucepan. Sauté onion and garlic in it. Stir in ginger, lemon grass and curry paste. Steam over high heat for 1-2 minutes, stirring continuously. Add lime juice and zest, tomatoes and cumin, bring to the boil.
Boil down over a low heat for about 20 minutes until thick.
In the meantime, prick sausages several times. Heat 1 tablespoon of oil in a frying pan. Fry the sausages for about 10 minutes. Remove lemon grass from the sauce. Season to taste with salt, pepper and sugar. Cut the sausages into slices and serve with the warm curry sauce.
Kroepoek to it.